Home / 21,273.81-31,915.47-6,483.88

Finding the Fourth Proportional to 21,273.81, 31,915.47 and 6,483.88

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Solution

The fourth proportional to 21,273.81, 31,915.47 and 6,483.88 is: 9,727.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.81 : 31,915.47 = 6,483.88 : x
  2. Step 2: Convert to fraction form
    21,273.81/31,915.47 = 6,483.88/x
  3. Step 3: Cross multiply
    21,273.81x = 31,915.47 × 6,483.88
  4. Step 4: Simplify right side
    21,273.81x = 206,936,077.62
  5. Step 5: Solve for x
    x = 206,936,077.62/21,273.81
  6. Step 6: Final answer
    x = 9,727.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.